1、hear sb do sth 听见某人已经做了某事情，这个 句式强调的是听见整个过程，属于一种回忆性描述。
【例句】Did you hear him go out? 你听见他走出去吗?
2、hear sb doing sth 听见某人正在做某事情，这个句式强调听见某人正在执行某个具体动作，属于现场即时描述。
【例句】I hear her crying. 我怎么听到她在哭？
扩展资料：
（1）I could practically hear him shrugging on his end of the phone line.
我甚至可以在电话另一端听到他耸了耸肩。
（2）Ben was right, but I could already hear her coming back.
本说的没错,但我已经听到她走回来的脚步声了。
（3）I was irritated to hear her sing the same song.
我听见她唱老调就很生气。
（4）Don't you hear her calling?
你没听见她在吆喝你吗?
（5）I hear they come to your homes now in India to teach you yoga. Privatelessons.
我听说它们会上门教你学习瑜伽，家庭教学。
（6）It turns my stomach to hear him flatter.
听到他拍马屁，我实在感到讨厌。
（7）I could have laughed to hear him talk like this.
听到他这样讲话，我差点笑出来了。
